– Lat/Long: 48.71° N 121.99° W
South Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 9 pm Sun 08 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Sun 08 Nov Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 53mm), heaviest during Tue afternoon. Very mild (max 13°C on Wed afternoon, min 6°C on Sun night). Wind will be generally light. | Days 5–7 Weather SummaryHeavy rain (total 42mm), heaviest during Fri afternoon. Very mild (max 14°C on Thu morning, min 6°C on Fri night). Wind will be generally light. | |||||||||||||||
Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  |  | |  |  | | | | | | |
light rain | cloudy | mod. rain | rain shwrs | mod. rain | heavy rain | heavy rain | light rain | cloudy | cloudy | some clouds | some clouds | cloudy | light rain | heavy rain | heavy rain | |
Cloud base (m) | 5950 | 2100 | 1750 | 600 | 850 | 550 | 600 | 650 | 6100 | 5700 | 6500 | 6500 | 6300 | 3350 | 1350 | 500 |
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.1 | — | 5 | 7 | 6 | 17 | 17 | 0.8 | — | — | — | — | — | 1.1 | 13 | 13 |
max °C | 6 | 10 | 8 | 7 | 8 | 9 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 8 | 8 |
min °C | 6 | 9 | 7 | 7 | 7 | 9 | 9 | 12 | 13 | 12 | 13 | 12 | 12 | 10 | 7 | 6 |
chill °C | 5 | 7 | 5 | 4 | 5 | 7 | 7 | 10 | 12 | 10 | 12 | 11 | 11 | 7 | 4 | 2 |
Freezing level m | 1800 | 1950 | 1900 | 1700 | 1950 | 2550 | 3100 | 2850 | 2850 | 2700 | 2600 | 2650 | 2800 | 2400 | 1750 | 1650 |
 | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:13 | — | — |
 | — | — | 4:35 | — | — | 4:34 | — | — | 4:31 | — | — | 4:30 | — | — | 4:30 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 53mm), heaviest during Tue afternoon. Very mild (max 13°C on Wed afternoon, min 6°C on Sun night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Heavy rain (total 42mm), heaviest during Fri afternoon. Very mild (max 14°C on Thu morning, min 6°C on Fri night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table.For a wider overview of the weather, consult the Weather Map of Washington.